
The Comanche Peak Nuclear Power Plant is a two-unit nuclear-fueled power plant located in Glen Rose, Texas, providing electricity for the Electric Reliability Council of Texas (ERCOT) grid, which manages the flow of electric power to over 26 million customers in the state. The plant has been operational since the early 1990s and currently consists of two pressurized water reactors, with two additional units planned. Comanche Peak's nuclear reactors offer a steady and reliable electricity supply, contributing to Texas's energy security and stabilizing consumer energy prices.
| Characteristics | Values |
|---|---|
| Location | Glen Rose, Texas, approximately 80 miles southwest of Dallas-Fort Worth |
| Ownership | Luminant |
| Reactor Type | Two pressurized water reactors |
| Reactor Capacity | Each reactor is capable of producing electricity for 18 to 24 months before needing to be refueled |
| Power Output | 2.3GW; each unit capable of generating 1,150MW of net electricity |
| Customers | More than 26 million Texas customers via the Electric Reliability Council of Texas (ERCOT) grid |
| Employment | 1,000 people permanently employed for operations; provided 10,000 jobs during the construction phase |
| Construction | Construction began in December 1974 |
| Population Within 10 Miles | 30,653 as of 2010, an increase of 44.1% in a decade |
| Population Within 50 Miles | 1,755,528 as of 2010, an increase of 22.9% since 2000 |
| Generation in 2022 | 19,687 GWh |
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What You'll Learn
- The Comanche Peak Nuclear Power Plant is located in Texas, providing electricity to over 26 million customers
- The plant has been operational since 1990, with two pressurised water reactors
- Comanche Peak generated 19,687 GWh in 2022, powering 1.15 million homes
- The plant provides economic benefits to the region, including employment opportunities
- It is one of two operating nuclear energy facilities in Texas, owned by Luminant

The Comanche Peak Nuclear Power Plant is located in Texas, providing electricity to over 26 million customers
The Comanche Peak Nuclear Power Plant is a vital energy source for Texas, located in the small town of Glen Rose, about 80 miles southwest of Dallas-Fort Worth. With a generating capacity of 2.3GW, it is the second newest nuclear power plant in the US. The plant has been operational since the 1990s and currently consists of two pressurized water reactors, with two additional units planned.
Comanche Peak's reactors use heat from nuclear fission to produce steam, which drives turbines to generate electricity. Each reactor can produce a substantial amount of electricity for 18 to 24 months before needing to be refuelled, ensuring a constant energy supply with minimal interruptions. The long operational cycle is a significant advantage, contributing to a steady and reliable electricity supply for Texas.
The plant's electricity output is managed by the Electric Reliability Council of Texas (ERCOT) grid, which oversees the power flow to over 26 million customers across the state. This consistent supply of nuclear energy helps stabilize energy prices for consumers, as it provides a more predictable cost structure compared to fluctuating natural gas prices.
In addition to its energy contribution, Comanche Peak has positively impacted the local community. During its construction, the project provided over 10,000 jobs, and the plant currently employs 1,000 people, offering economic benefits to the region. The plant's operations also reflect the nuclear industry's commitment to safety and reliability, with rigorous safety measures and meticulous attention to detail.
The Comanche Peak Nuclear Power Plant plays a crucial role in enhancing Texas's energy security, providing a steady and reliable electricity supply to millions of customers while also driving local economic growth and employment opportunities.
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The plant has been operational since 1990, with two pressurised water reactors
The Comanche Peak Nuclear Power Plant is located in the small town of Glen Rose, Texas, approximately 80 miles southwest of Dallas-Fort Worth. The plant has been operational since 1990 and has two pressurised water reactors, which use heat generated from nuclear fission to produce steam that drives turbines, generating electricity. The reactors were supplied by Westinghouse Electric Corporation, while the turbine generators were supplied by Allis Chalmers Power Systems.
Each reactor is capable of producing electricity for 18 to 24 months before needing to be refuelled. This long operational cycle is an advantage of nuclear power, allowing the plant to provide a constant energy supply with minimal interruptions. The plant's two reactors have a combined capacity of 2.3GW and can generate enough electricity to power approximately 1.15 million homes during normal conditions and up to 460,000 additional households during peak demand. In 2022, Comanche Peak generated 19,687 GWh of electricity.
The Comanche Peak Nuclear Power Plant contributes significantly to the Electric Reliability Council of Texas (ERCOT) grid, which manages the flow of electric power to more than 26 million Texas customers. Nuclear energy provides a steady and reliable supply of electricity, with a more predictable cost structure compared to natural gas, helping to stabilise energy prices for consumers. The plant's operations are a testament to the nuclear industry's commitment to safety and reliability, requiring rigorous safety measures and meticulous attention to detail.
The construction of the Comanche Peak Nuclear Power Plant began in December 1974 and provided over 10,000 jobs during the construction phase. Today, the plant employs around 1,000 people and has been a significant presence in the local community, offering not only a substantial portion of the state's electricity but also economic benefits and employment opportunities to the region.
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Comanche Peak generated 19,687 GWh in 2022, powering 1.15 million homes
Comanche Peak Nuclear Power Plant is located in the small town of Glen Rose, Texas, approximately 80 miles southwest of Dallas-Fort Worth. The plant has been a significant presence in the local community since its inception. It provides a substantial portion of the state's electricity, powering approximately 1.15 million homes during normal conditions and up to 460,000 additional households during peak demand. In 2022, Comanche Peak generated 19,687 GWh of electricity.
The plant has two operational reactors, with two additional units planned. Each reactor is capable of producing electricity for 18 to 24 months before needing to be refuelled. The long operational cycle is an advantage of nuclear power, allowing the plant to provide a constant energy supply with minimal interruptions. The two pressurised water reactors use heat generated from nuclear fission to produce steam that drives turbines, generating electricity.
The Comanche Peak Nuclear Power Plant contributes significantly to the Electric Reliability Council of Texas (ERCOT) grid, which manages the flow of electric power to more than 26 million Texas customers. Nuclear energy provides a steady and reliable supply of electricity, with a more predictable cost structure than other energy sources like natural gas. This can help stabilise energy prices for consumers.
The plant's operations are a testament to the nuclear industry's commitment to safety and reliability. It is owned and operated by Luminant, and Radiation Control has responsibility for environmental surveillance outside the plant boundaries and involvement in emergency response exercises. The site features an independent spent fuel storage installation (ISFSI) to store spent reactor fuel and radioactive materials in above-ground dry casks.
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The plant provides economic benefits to the region, including employment opportunities
The Comanche Peak Nuclear Power Plant, located in Glen Rose, Texas, provides electricity to over 26 million customers in Texas, powering approximately 1.15 million homes under normal conditions and up to 460,000 additional households during peak demand. The plant has been a significant presence in the local community since its inception, providing a substantial portion of the state's electricity.
Comanche Peak's operations have a positive economic impact on the region. During the construction phase, the project provided over 10,000 jobs, and an additional 1,000 people are permanently employed for the plant's operations. The plant also offers other employment opportunities, both directly and indirectly, contributing to the economic well-being of the area.
The plant's continuous operation provides a constant energy supply with minimal interruptions. The use of nuclear power offers a more predictable cost structure compared to natural gas, helping to stabilize energy prices for consumers. This stable and reliable electricity supply is a significant advantage for the region's economy, providing a consistent and affordable energy source for businesses and residents.
Moreover, the plant's presence has likely contributed to the area's population growth. Between 2000 and 2010, the population within a 50-mile radius of Comanche Peak increased by 22.9%, indicating a positive impact on the region's attractiveness for residents. This growth may have further economic benefits, such as increased business opportunities and a larger consumer base.
Overall, the Comanche Peak Nuclear Power Plant brings significant economic value to the region, including enhanced employment prospects, stable energy prices, and a reliable energy supply, all of which contribute to the prosperity and development of the local community.
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It is one of two operating nuclear energy facilities in Texas, owned by Luminant
The Comanche Peak Nuclear Power Plant is located in the small town of Glen Rose, Texas, approximately 80 miles southwest of Dallas-Fort Worth. The plant is one of two operating nuclear energy facilities in Texas, owned and operated by Luminant. It consists of two operational reactors, with two additional units planned. The reactors use heat generated from nuclear fission to produce steam that drives turbines, generating electricity.
Each reactor is capable of producing electricity for 18 to 24 months before needing to be refuelled. This long operational cycle is an advantage of nuclear power, allowing the plant to provide a constant energy supply with minimal interruptions. Comanche Peak's two pressurised water reactors have been generating electricity for the Electric Reliability Council of Texas (ERCOT) since August 1990 and August 1993, respectively. The plant contributes significantly to the ERCOT grid, which manages the flow of electric power to more than 26 million Texas customers.
The Comanche Peak Nuclear Power Plant provides a substantial portion of the state's electricity. In 2022, the plant generated 19,687 GWh of electricity. The plant's two reactors are each capable of generating 1,150MW of net electricity at 22kV, which is stepped up to 345kV by the main transformers on-site. This capacity allows the Comanche Peak NPP to generate enough electricity to power approximately 1.15 million homes during normal conditions and up to 460,000 additional households during peak demand.
The Comanche Peak Nuclear Power Plant has been a significant presence in the local community since its inception. In addition to providing electricity, the plant offers employment opportunities and economic benefits to the region. During the construction phase, the project provided more than 10,000 jobs, while another 1,000 people are permanently employed for the plant's operations. The plant's operations are a testament to the nuclear industry's commitment to safety and reliability, requiring rigorous safety measures and meticulous attention to detail.
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Frequently asked questions
The Comanche Peak Nuclear Power Plant provides electricity for Texas. The plant has been operational since the 1990s and contributes significantly to the Electric Reliability Council of Texas (ERCOT) grid, which manages the flow of electricity to over 26 million customers in the state.
Comanche Peak has two operational reactors that use heat generated from nuclear fission to produce steam and drive turbines, generating electricity. Each reactor can produce electricity for 18 to 24 months before needing to be refueled, ensuring a constant energy supply.
Nuclear power provides a more predictable cost structure than natural gas, helping to stabilize energy prices for consumers. It also offers a steady and reliable electricity supply compared to intermittent renewable energy sources. Additionally, the plant provides employment opportunities and economic benefits to the local community in Texas.








































